Innermost lap modified for orbiters (5,7)

I believe the answer is:

minor planets

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'orbiters' is the definition.
I can't tell whether this definition defines the answer.

'innermost lap modified' is the wordplay.
'modified' is an anagram indicator.
'innermost'+'lap'='innermostlap'
'innermostlap' is an anagram of 'MINOR PLANETS'.

'for' acts as a link.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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